How to make a meassurement for a water tank?

[David M.]

I'm a collage student that try to make a measurement for a water tank level with a pressure sensor at the bottom of the tank. the measurement is using a P, PI, PD, and PID controller. I've made the simulation, but I can't make it work for the real tank.

I just make the P and PI controller, and the rest is not my work (it supposed to be my friend's).

When I try the simulation mode it can work for sure, but after I try with the tank, the program is realy diferent.

I must connect the true level and the pump cable with the DAQ-pad, and it needs a very diferent program.

I must make a new program again with the same controller, but can't make it work.

I will attach my latest LabVIEW program that I make.

[jcarmody]

QUOTE (David M. @ Jan 28 2009, 02:46 AM)

I will attach my latest LabVIEW program that I make.

The file is from a really old version of LabVIEW; I can't open it.

[David M.]

I used LabVIEW 5

[mross]

QUOTE (David M. @ Jan 28 2009, 06:29 AM)

I used LabVIEW 5

I see you edited out the references to this being for your final exam. Sharp guy.